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A composite coil spring includes a coil body that has a core and fiber layers impregnated with a polymer material. The fiber layers are wound around the core. The fiber layers extend around the coiled axis at oblique fiber angles. Each of the fiber layers includes a number of fibers that is a produc

A composite coil spring includes a coil body that has a core and fiber layers impregnated with a polymer material. The fiber layers are wound around the core. The fiber layers extend around the coiled axis at oblique fiber angles. Each of the fiber layers includes a number of fibers that is a product of a common base number of fibers multiplied by a positive non-zero integer from a set of positive non-zero integers from 1 to 20. The positive non-zero integer of at least one of the fiber layers is different from the positive non-zero integer of at least one other of the fiber layers. At least one of the fibers layers is glass fibers and another of the fiber layers is carbon fibers, and each of an innermost fiber layer and an outmost fiber layer of the fiber layers is independently selected from glass fibers and carbon fibers.

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1. A composite coil spring comprising: a coil body including a core and a plurality of fiber layers impregnated with a polymer material, the fiber layers being wound around the core at different radial distances from a coiled axis,each of the fiber layers extending around the coiled axis at an obliq

1. A composite coil spring comprising: a coil body including a core and a plurality of fiber layers impregnated with a polymer material, the fiber layers being wound around the core at different radial distances from a coiled axis,each of the fiber layers extending around the coiled axis at an oblique fiber angle to the coiled axis,each of the fiber layers including a number of fibers that is a product of a common base number of fibers multiplied by a positive non-zero integer from a set of positive non-zero integers from 1 to 20,the positive non-zero integer of at least one of the fiber layers is different from the positive non-zero integer of at least one other of the fiber layers,wherein at least one of the fiber layers is glass fibers and another of the fiber layers is carbon fibers,wherein each of an innermost fiber layer and an outmost fiber layer of the fiber layers is independently selected from glass fibers and carbon fibers, andwherein at least one of the fiber layers is metallic fibers or ceramic fibers. 2. The composite coil spring as recited in claim 1, wherein the oblique angle is +/−20-54°. 3. The composite coil spring as recited in claim 1, wherein the innermost fiber layer and the outermost fiber layer have equal positive non-zero integers. 4. The composite coil spring as recited in claim 1, wherein the innermost fiber layer and the outermost fiber layer have non-equal positive non-zero integers. 5. The composite coil spring as recited in claim 1, wherein the core is a fibrous core. 6. The composite coil spring as recited in claim 1, wherein the positive non-zero integer of the one of the fiber layers that is different from the positive non-zero integer of the other of the fiber layers is different by more than 2. 7. The composite coil spring as recited in claim 6, wherein the fiber layer that has the positive non-zero integer that is different from the positive non-zero integer of the other of the fiber layers by more than 2 is glass fibers, and the other of the fiber layers is carbon fibers. 8. The composite coil spring as recited in claim 7, wherein the oblique fiber angle of each of the plurality of fiber layers is also oblique to at least one directly neighboring one of the plurality of fiber layers. 9. A composite coil spring comprising: a coil body including a core and a plurality of fiber layers impregnated with a polymer material, the fiber layers being wound around the core at different radial distances from a coiled axis,each of the fiber layers extending around the coiled axis at an oblique fiber angle to the coiled axis,each of the fiber layers including a number of fibers that is a product of a common base number of fibers multiplied by a positive non-zero integer from a set of positive non-zero integers from 1 to 20,the positive non-zero integer of at least one of the fiber layers is different from the positive non-zero integer of at least one other of the fiber layers,wherein at least one of the fiber layers is glass fibers and another of the fiber layers is carbon fibers,wherein each of an innermost fiber layer and an outmost fiber layer of the fiber layers is independently selected from glass fibers and carbon fibers,wherein the positive non-zero integer of the one of the fiber layers that is different from the positive non-zero integer of the other of the fiber layers is different by more than 2,wherein the fiber layer that has the positive non-zero integer that is different from the positive non-zero integer of the other of the fiber layers by more than 2 is glass fibers, and the other of the fiber layers is carbon fibers,wherein the oblique fiber angle of each of the plurality of fiber layers is also oblique to at least one directly neighboring one of the plurality of fiber layers, andwherein each of the fiber layers contains from 4 to 60 fiber rovings. 10. The composite coil spring as recited in claim 9, wherein each of the fiber rovings has either 2000 fibers or 4000 fibers. 11. The composite coil spring as recited in claim 8, wherein the innermost fiber layer and the outermost fiber layer have non-equal positive non-zero integers. 12. The composite coil spring as recited in claim 1, wherein the polymer material includes at least one of epoxy or polyester. 13. The composite coil spring as recited in claim 1, wherein at least one of the fiber layers is aramid fibers. 14. The composite coil spring as recited in claim 1, wherein the core is a solid core. 15. A composite coil spring comprising: a coil body including a core and a plurality of fiber layers impregnated with a polymer material, the fiber layers being wound around the core at different radial distances from a coiled axis,each of the fiber layers extending around the coiled axis at an oblique fiber angle to the coiled axis,each of the fiber layers including a number of fibers that is a product of a common base number of fibers multiplied by a positive non-zero integer from a set of positive non-zero integers from 1 to 20,the positive non-zero integer of at least one of the fiber layers is different from the positive non-zero integer of at least one other of the fiber layers,wherein at least one of the fiber layers is glass fibers and another of the fiber layers is carbon fibers, andwherein each of an innermost fiber layer and an outmost fiber layer of the fiber layers contains from 4 to 60 fiber rovings. 16. The composite coil spring as recited in claim 15, wherein the oblique fiber angle is +/−20-54°. 17. The composite coil spring as recited in claim 16, wherein the fiber layer that has the positive non-zero integer that is different from the positive non-zero integer of the other of the fiber layers by more than 2 is glass fibers, and the other of the fiber layers is carbon fibers. 18. The composite coil spring as recited in claim 15, wherein each of the fiber rovings has either 2000 fibers or 4000 fibers. 19. The composite coil spring as recited in claim 15, wherein the innermost fiber layer and the outermost fiber layer have non-equal positive non-zero integers.